Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 305/70-22.5 | 315/70-22.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 39.31 (998.5) | 39.86 (1012.5) | 0.55 (14) 1.4% |
| Width inches (mm) | 12.01 (305) | 12.4 (315) | 0.39 (10) 3.3% |
| Circum. inches (mm) | 123.5 (3136.88) | 125.23 (3180.86) | 1.73 (43.98) 1.4% |
| Sidewall Height inches (mm) | 8.41 (213.5) | 8.68 (220.5) | 0.28 (7) 3.3% |
| Revolutions per mile (km) | 513.04 (318.79) | 505.95 (314.38) | -7.09 (-4.41) -1.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.28 mph (32.64 km/h) |
| 25 mph (40.23 km/h) | 25.35 mph (40.8 km/h) |
| 30 mph (48.28 km/h) | 30.42 mph (48.96 km/h) |
| 35 mph (56.33 km/h) | 35.49 mph (57.12 km/h) |
| 40 mph (64.37 km/h) | 40.56 mph (65.28 km/h) |
| 45 mph (72.42 km/h) | 45.63 mph (73.44 km/h) |
| 50 mph (80.47 km/h) | 50.7 mph (81.6 km/h) |
| 55 mph (88.51 km/h) | 55.77 mph (89.76 km/h) |
| 60 mph (96.56 km/h) | 60.84 mph (97.91 km/h) |
| 65 mph (104.61 km/h) | 65.91 mph (106.07 km/h) |
| 70 mph (112.65 km/h) | 70.98 mph (114.23 km/h) |
| 75 mph (120.7 km/h) | 76.05 mph (122.39 km/h) |
| 80 mph (128.75 km/h) | 81.12 mph (130.55 km/h) |
| 85 mph (136.79 km/h) | 86.19 mph (138.71 km/h) |
| 90 mph (144.84 km/h) | 91.26 mph (146.87 km/h) |
| 95 mph (152.89 km/h) | 96.33 mph (155.03 km/h) |
| 100 mph (160.93 km/h) | 101.4 mph (163.19 km/h) |
| 2.35 | 2.73 | 2.94 | 3.07 | 3.21 | 3.31 | 3.42 | 3.55 | 3.73 | 3.91 | 4.11 | 4.27 | 4.56 | 4.88 | 5.13 | 5.29 | 5.38 | 5.71 | 6.17 | 7.17 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1288 | 1496 | 1611 | 1682 | 1759 | 1814 | 1874 | 1945 | 2044 | 2142 | 2252 | 2339 | 2498 | 2674 | 2811 | 2898 | 2948 | 3128 | 3380 | 3928 |
Better Fuel Economy Factory Ratios Increased Power
